Home / 722,311.20-1,083,639.60-348,026.40

Finding the Fourth Proportional to 722,311.20, 1,083,639.60 and 348,026.40

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Solution

The fourth proportional to 722,311.20, 1,083,639.60 and 348,026.40 is: 522,122.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,311.20 : 1,083,639.60 = 348,026.40 : x
  2. Step 2: Convert to fraction form
    722,311.20/1,083,639.60 = 348,026.40/x
  3. Step 3: Cross multiply
    722,311.20x = 1,083,639.60 × 348,026.40
  4. Step 4: Simplify right side
    722,311.20x = 377,135,188,885.44
  5. Step 5: Solve for x
    x = 377,135,188,885.44/722,311.20
  6. Step 6: Final answer
    x = 522,122.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.